Gas burner



March 27, 1934. H. BRIGGS 1,952,356

GAS BURNER Filed Aug. 22, 1930 as v WW ymmvmrz m INVENTOR. flurryB/v'yy-s' BY A TTORNEY. J.

Patented Mar. '27, 1934 UNITED STATES GAS- BURNER Harry Briggs,Cleveland, Ohio, assignor to The Foundry Equipment Company, Cleveland,Ohio,

a corporation of Ohio Application August 22,

1930, Serial No. 477,052

7 Claims. (01. 15a-1o4) This invention relates to gas burnersparticularly of large sizes for use in industrial ovens, this type ofburner usually being in the form of a long manifold having aconsiderable number of tips projecting at intervals from one side.

The invention may be applied to any of the principal types of gasburners, either atmospheric, employing a simple mixer at the intake endof the 'manifold; low pressure, in which the air and gas are introducedby a blower; or high pressure, where the pressure of gas entering themanifold is on the order of from five to twenty-five pounds to thesquare inch.

The invention aims to provide a burner of. the type mentioned which-willquickly and certainly ignite all the tips from a singlesource and willavoid all accumulations of gas or failure of ignition of the jet fromany tip.

Although described as embodied for industrial applications, it will beunderstood that the principles may be readily adapted to other forms andsizes, such as domestic gas stoves.

Referring to the drawing, Fig. l is a perspective view of a singleseries of burners; Fig. 2 is a perspective view showing a double seriesof burners; and Fig. 3 illustrates a further modification.

In the form shown in Fig. 1 a manifold of tubular form is illustrated,this being connected as at 11 to a source of supply of gas and air andclosed by a cap 12 at its far end.

Along one side of the manifold a number of tips or nozzles 13, 14, ofgenerally L-shape are let in, these being made of alloy steel, lava orother suitable material, and arranged to project a jet of gasapproximately along the outer surface of the tube 10, but preferably atsome inclination to the axialline of the tube. A preferable arrangementof the tips is in two rows, stag gered, and with the tips of each rowinclined slightly toward the other row so that the stream of gasor theflame from each nozzle will intersect the stream from the next nozzle inthe opposite row. In the arrangement shown in Fig. 1 each tip except thefirst and the last two pro- 45 jects its stream across the stream of theone behind it as well as across the stream of the one in front, thiscriss-cross arrangement very com- Y pletely insuring speedy ignition ofthe jet from each tip if a light is applied to any of them.

This feature is shown by the dash lines 16 indicating gas and flamepaths in Fig. 1.

The normal lighting will, of course, be from beginning to end in thedirection of the flow of the streams. A preferred method ofaccomplishing 65 this is to place a pilot light or other igniting means,such as 15, in a position to ignite the first stream or jet of theseries. This first jet will then ignite the second, the second thethird, and so on. Thus the flames spread very rapidly from one end ofthe burner to the other and the time lag is too short .to permit theaccumulation of gas in dangerous quantities at any point.

In situations where it may be undesirable to have all the flames tendingin one direction, a

double ended arrangement may be employed, ighating from the'middle. Sucha' double arrangement is seen in Fig. 2, which illustrates a manifold 20connected as at 21 to a source of supply and having two series ofnozzles 23, 23 and 24, 24 each series in a row, on one section, allpointing 7o toward one end and inclined toward the opposite row. Tips25, 25 and 26, 26 are similarly arranged in two rows in the oppositedirection on another section of the manifold. In this form the ignitingmeans 2'? is so located as to serve both series of. tips, and mayconveniently take the form of a double branched pilot light- In thisdouble ended form the principle of criss-cross jet arrangement islikewise used, as shown by the dash lines 29 of Fig. 2.

On account of the diffusion of the gas from each tip and on account ofthe flame spread, it is possible to'accomplish the result of myinvention by such an arrangement as is shown in Fig. 3, al-

through this is less efiicient than the other two forms shown.

. In Fig. 3 a manifold 30 is illustrated only a single series of tips33, all directed rearwardly but inclined upwardly on parallel lines, sothat the fiame from the first will ignite the stream of gas issuing fromthe second and so on, although the paths of the outgoing streams do notintersect. In this form an igniting means 35, here convenientlyillustrated in diagrammatic style as a spark gap, is placed adjacent thefirst tip.

Although I have herein shown and described certain preferred formsembodying the principles of my invention, it will be understood that Ido not limit myself thereto, but that the invention is susceptible ofbeing applied in other forms within the scope of the appended claims. a

What I claim is: p

1. A multiple gas burner comprising in combination'a plurality of tipsadapted to project gas on successively intersecting lines, said linesform-' ing a criss-cross arrangement along the entire row of tips.

2. A gas burner comprising, in combination, a manifold" and a pluralityof burner tips on the external surface thereof, said tips being sodirected that the path of gas from each will intersect the path of gasfrom the next preceding and from the next succeeding burner tips.

3. A multiple gas burner comprising a tube, a plurality of tips insuccessive arrangement in two lines therealong, the tips intermediatethe ends of the burner being inclined to project a jet of gas across thejets projected by their respective preceding and succeeding tips.

4. A gas burner comprising an elongated body and a plurality of seriesof tips mounted on opposite sides of the top thereof, the tips of eachseries being staggered with respect to those of the opposite series andbeing inclined toward the opposite series and parallel to the other tipsin the same series so that each tip not at the end directs its dischargeacrossthe discharges both of the previous tip and of the next tip in theopposite series.

5. A gas burner comprising a plurality of series of tips, the tips ofeach series being disposed successively so that the discharge from eachtip impinges upon the discharge from a tip further back in the otherseries and also upon the discharge from a tip further along in the otherseries. v 6. A gas burner comprising a tube, a plurality of tipstherealong in two lines spaced transversely, each of said tips beingplaced opposite an interval of the other line and inclined toward theother line at a point in advance of a tip and also toward an end of thetube.

7. A gas burner comprising a tube, a plurality of tips therealong, theextension of the axis of each of said tips approximately intersectingthe extension of the axis of another tip, and the extension of the axisof the latter in turn approximately intersecting the extension of theaxis of still another tip.

HARRY BRIGGS.

